Ksenija Knezevic, of Zurich, and Marlies Barisic, of Kreuzlingen, both in their early 30s, say the bloodsucking insects began attacking the night they checked into the Hotel Pennsylvania in September.

The women’s lawsuit, filed in Manhattan’s state Supreme Court, says they suffered bedbug bites over their torsos, arms and legs. Their lawyer, Alberto Ebanks, said bugs also bit their cheeks and necks and caused possibly permanent scarring.